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Peru Muni Weather Forecast
| REST OF TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 | |  |  | | | | | |  |  | |
| Patchy Fog | Patchy Fog | Clear | Sunny | Clear | Sunny | Clear | Mostly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 943 PM EDT Tue Oct 20 2026 
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Issued: 721 PM EDT Tue Oct 20 2026
Key Messages
- Dense fog possible early Wednesday morning, especially along and east of I-69.
- Tranquil fall weather continues with mild temperatures and sunshine through this week into the weekend.
Discussion
... Issued at 1245 PM EDT Tue Oct 20 2026
With high pressure over southern Ontario and prominent upper level ridging over the central CONUS expected to build into the Great Lakes over the next several days, a tranquil week is ahead. Expect lots of sunshine, light winds, and highs generally in the...